leucism

play
noun leu·cism \ˈlü-ˌsi-zəm\

Definition of leucism

  1. :  an abnormal condition of reduced pigmentation affecting various animals (such as birds, mammals, and reptiles) that is marked by overall pale color or patches of reduced coloring and is caused by a genetic mutation which inhibits melanin and other pigments from being deposited in feathers, hair, or skin

leucistic

play \lü-ˈsi-stik\ adjective

Recent Examples of leucism from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leucism'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of leucism

borrowed from German Leucismus, from Greek leukós “clear, white” + German -ismus -ism — more at 1light


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